CN105552922A - Beidou satellite communication based automatic voltage control method and system of uncontrolled power plant - Google Patents
Beidou satellite communication based automatic voltage control method and system of uncontrolled power plant Download PDFInfo
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- CN105552922A CN105552922A CN201610052101.2A CN201610052101A CN105552922A CN 105552922 A CN105552922 A CN 105552922A CN 201610052101 A CN201610052101 A CN 201610052101A CN 105552922 A CN105552922 A CN 105552922A
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- 238000004891 communication Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 121
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 claims description 6
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- 238000010276 construction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 206010003830 Automatism Diseases 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H02J13/0075—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses a Beidou satellite communication based automatic voltage control method of an uncontrolled power plant. The method comprises the following steps of S1, building a Beidou satellite transmission passage, wherein the Beidou satellite transmission passage comprises a Beidou command terminal and a Beidou user terminal; S2, acquiring downlink communication content from an automatic volume control (AVC) master station by the Beidou command terminal, and sending a voltage target instruction value to the Beidou user terminal according to an ID, wherein the downlink communication content comprises the voltage target instruction value issued from the AVC master station in real time and the corresponding ID of the Beidou user terminal; and S3, adjusting the bus voltage of a plant side and a controllable machine set by an AVC sub station according to the voltage target construction value acquired from the Beidou user terminal. According to the method, the control instruction issued from the AVC master station is transmitted by the Beidou satellite transmission passage and are encrypted and decrypted by the Beidou command terminal and the Beidou user terminal, thereby being beneficial for preventing a coding rule from being leaked and improving the safety of data transmission.
Description
Technical field
The present invention relates to electric power network technique field, particularly relate to a kind of non-tracking power plant automatic voltage control method based on Beidou satellite communication and system.
Background technology
Along with the progressively raising that development and the user of dispatching automation require the quality of power supply, automatism voltage control technology obtains extensive and deep application at electrical network, plant stand side automatic voltage control system also arises at the historic moment, and achieves good economic benefit and social benefit.Along with the progressively input of tracking power plant automatic voltage control system is incorporated into the power networks, in order to strengthen power system reactive power flowing and voltage management and control technical merit further, the further quality of power supply and the safety and economic operation level of electrical network improving power supply, the investigation and application of the automatism voltage control technology of non-tracking power plant that thus net does not cover for dispatching data has just become day by day urgent demand.
Non-tracking power plant mainly refers to small power station, power plant for self-supply, biological energy power plant and distributed wind-power generator field and photo-voltaic power generation station etc.Its principal character is that most of geographical position is more remote, and the dispersion of multi-point and wide-ranging and position, does not have specific schedule data network, service data and the running status in voltage control system real-time command with station of dispatching terminal cannot carry out issuing and on give.And set up or lay special power carrier channel or dedicated optic fiber channel, due to the non-distribution characteristics of tracking power plant and the restriction of regional feature, not only cost of investment is large, the construction period is long, nor real, infeasible.And for employing GPRS or cdma wireless communication mode, owing to being subject to the threat of restriction that base station signal covers and public network information transmission safety, also infeasible.Thus, between current non-tracking power plant and scheduling, ubiquity lacks the such problem of information transfer channel, causes the automatic voltage control system of non-tracking power plant to implement.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of non-tracking power plant automatic voltage control method based on Beidou satellite communication and system.
A kind of non-tracking power plant automatic voltage control method based on Beidou satellite communication that the present invention proposes, comprises the following steps:
S1, set up Beidou satellite transmission passage, it comprises Big Dipper command terminal and Big Dipper user terminal;
S2, Big Dipper command terminal obtain downlink communication content from AVC main website, downlink communication content comprises the ID mark of the voltage target command value of AVC main website real time down and the Big Dipper user terminal of correspondence, and according to ID mark, voltage target command value is sent to Big Dipper user terminal;
S3, AVC substation regulates plant stand side bus voltage and controlled unit according to the voltage target command value obtained from Big Dipper user terminal;
S4, Big Dipper user terminal obtain uplink communication content from AVC substation, uplink communication content comprises the plant stand side information of voltage of AVC substation collection and the ID mark of corresponding Big Dipper command terminal, and according to ID mark, plant stand side information of voltage is sent to Big Dipper command terminal;
S5, AVC main website obtains plant stand side information of voltage from Big Dipper command terminal, and according to plant stand side information of voltage formation voltage target instruction target word value.
Preferably, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
Preferably, step S2 specifically comprises step by step following:
S21, Big Dipper command terminal from AVC main website Real-time Obtaining downlink communication content, and are forwarded to ground central station as check-in signal by big-dipper satellite after being encrypted downlink communication content;
S22, check-in signal change exit signal into and are broadcast to Big Dipper user terminal by big-dipper satellite after deciphering again encryption;
S23, Big Dipper user terminal are decrypted rear generation communication message to exit signal and send to AVC substation.
Preferably, step S3 specifically comprises step by step following:
Whether S31, AVC substation, according to the difference between voltage target command value and current busbar voltage, judges to regulate target to restrain;
If S32 restrains, then terminate regulable control; If do not restrained, then pass through and the voltage power-less sensitivity of site, calculate whole audience target in real time idle, then according to idle coordinated allocation strategy, the target calculating each controlled unit is idle;
S33, by the voltage power-less sensitivity of unit machine end, result is controlled to epicycle and carry out state estimations, and after Security corrective being carried out to the control objectives of unit according to the result of state estimations, obtain the security control object of each controlled unit;
S34, excitation con-trol unit security control object being exported to each controlled unit carry out target control, then return step S31.
Preferably, step S4 specifically comprises step by step following:
S41, Big Dipper user terminal obtain uplink communication content from AVC substation, and are sent to ground central station as check-in signal by big-dipper satellite after being encrypted uplink communication content;
S42, check-in signal change exit signal into and are broadcast to Big Dipper command terminal by big-dipper satellite after deciphering again encryption;
S43, Big Dipper command terminal are decrypted rear generation communication message to exit signal and send to AVC main website.
Preferably, Beidou satellite transmission passage is duplex communication passage.
Based on a non-tracking power plant automatic voltage control system for Beidou satellite communication, comprising: main website end, Beidou satellite transmission passage and AVC substation;
Beidou satellite transmission passage comprises Big Dipper user terminal, Beidou satellite system and Big Dipper command terminal; The communication mode of Beidou satellite transmission passage is: first transmit leg is forwarded to ground central station as check-in signal using after the apply by letter signal encryption comprising recipient ID mark and Content of Communication by big-dipper satellite; Ground central station is sent to terrestrial network tube hub after processing check-in signal; Check-in signal after terrestrial network tube hub receives process is sent to ground central station as exit signal through deciphering with after encrypting again; Exit signal is broadcast to recipient through big-dipper satellite by ground central station; Recipient sends after being decrypted exit signal; Transmit leg is Big Dipper command terminal or Big Dipper user terminal, and recipient is Big Dipper user terminal or Big Dipper command terminal;
Main website end comprises AVC main website and Big Dipper master information management platform; AVC substation obtains plant stand side information of voltage, plant stand side information of voltage identifies with corresponding Big Dipper command terminal ID and sends to Big Dipper user terminal by AVC substation, and Big Dipper master information management platform obtains plant stand side information of voltage by Beidou satellite transmission passage and is transferred to AVC main website after process; AVC main website is according to plant stand side information of voltage formation voltage target instruction target word value, Big Dipper master information management platform generates Content of Communication according to voltage target command value, and is identified with the ID of corresponding Big Dipper user terminal by Content of Communication and send to Big Dipper command terminal to be communicated with AVC substation by Beidou satellite transmission passage; AVC substation regulates plant stand side bus voltage and controlled unit according to the voltage target command value received.
Preferably, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
In the present invention, carry out by Beidou satellite transmission passage the transmission that AVC main website issues control command, and be encrypted deciphering by Big Dipper command terminal and Big Dipper user terminal, be conducive to the leakage avoiding coding rule, improve the fail safe of transfer of data.And, between Big Dipper command terminal and Big Dipper user terminal, again a cipher mode is carried out to data change, reduce further the possibility that cipher mode is cracked.
The distinctive bi-directional communication capacity of Beidou satellite transmission passage is applicable to widespread adoption in the collection of communication under-developed area monitor data and transmission very much, and its communication process adopts encrypted transmission, ensure that Information Security.Thus adopt Beidou satellite transmission passage as the communication port between non-tracking power plant and scheduling station, a kind of safety, economic, effective approach, the problem of ubiquitous shortage information transfer channel between current non-tracking power plant and scheduling can be solved, provide necessary condition for non-tracking power plant realizes automatic voltage control system.
Utilize the bi-directional communication function of Beidou satellite transmission passage, and the characteristic of communication process encryption mechanism, Beidou satellite transmission passage is applied to the automatic voltage control system of non-tracking power plant as a kind of novel information transfer channel, both achieve the transfer of data between non-tracking power plant and scheduling station, in turn ensure that the fail safe of information transmission.
Accompanying drawing explanation
Fig. 1 is a kind of non-tracking power plant automatic voltage control method flow chart based on Beidou satellite communication that the present invention proposes;
Fig. 2 is a kind of non-tracking power plant automatic voltage control system structure chart based on Beidou satellite communication that the present invention proposes;
Fig. 3 is Beidou satellite transmission access diagram.
Embodiment
With reference to Fig. 1, a kind of non-tracking power plant automatic voltage control method based on Beidou satellite communication that the present invention proposes, comprises the following steps:
S1, set up Beidou satellite transmission passage, it comprises Big Dipper command terminal and Big Dipper user terminal.Big Dipper command terminal and Big Dipper user terminal are by Beidou satellite communication, and Beidou satellite transmission passage is duplex communication passage.
S21, Big Dipper command terminal from AVC main website Real-time Obtaining downlink communication content, and are forwarded to ground central station as check-in signal by big-dipper satellite after being encrypted downlink communication content.Downlink communication content comprises the ID mark of the voltage target command value of AVC main website real time down and the Big Dipper user terminal of correspondence.
S22, check-in signal change exit signal into and are broadcast to Big Dipper user terminal corresponding to ID mark by big-dipper satellite after deciphering again encryption.
S23, Big Dipper user terminal are decrypted rear generation communication message to exit signal and send to AVC substation.
In present embodiment, carry out by Beidou satellite transmission passage the transmission that AVC main website issues control command, and be encrypted deciphering by Big Dipper command terminal and Big Dipper user terminal, be conducive to the leakage avoiding coding rule, improve the fail safe of transfer of data.And, between Big Dipper command terminal and Big Dipper user terminal, again a cipher mode is carried out to data change, reduce further the possibility that cipher mode is cracked.
Whether S31, AVC substation, according to the difference between voltage target command value and current busbar voltage, judges to regulate target to restrain.
If S32 restrains, then terminate regulable control; If do not restrained, then pass through and the voltage power-less sensitivity of site, the whole audience target calculating electrical network is in real time idle, then according to idle coordinated allocation strategy, the target calculating each controlled unit is idle.
S33, by the voltage power-less sensitivity of unit machine end, result is controlled to epicycle and carry out state estimations, and after Security corrective being carried out to the control objectives of unit according to the result of state estimations, obtain the security control object of each controlled unit.
S34, excitation con-trol unit security control object being exported to each controlled unit carry out target control, then return step S31.
In present embodiment, the target of voltage target command value to each controlled unit that AVC substation issues according to AVC main website is idle distributes, Adjustment precision high efficient and reliable.
S41, Big Dipper user terminal obtain uplink communication content from AVC substation, and are sent to ground central station as check-in signal by big-dipper satellite after being encrypted uplink communication content.Uplink communication content comprises the plant stand side information of voltage of AVC substation collection and the ID mark of corresponding Big Dipper command terminal
S42, check-in signal change exit signal into and are broadcast to Big Dipper command terminal by big-dipper satellite after deciphering again encryption.
S43, Big Dipper command terminal are decrypted rear generation communication message to exit signal and send to AVC main website.
In present embodiment, carried out the transmission of AVC substation Information Monitoring by Beidou satellite transmission passage, and be encrypted deciphering by Big Dipper user terminal and Big Dipper command terminal, be conducive to the leakage avoiding coding rule, improve the fail safe of transfer of data.And, between Big Dipper command terminal and Big Dipper user terminal, again a cipher mode is carried out to data change, reduce further the possibility that cipher mode is cracked.
S5, AVC main website obtains plant stand side information of voltage from Big Dipper command terminal, and according to plant stand side information of voltage formation voltage target instruction target word value.Particularly, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
The information that AVC main website uploads according to AVC substation is analyzed for plant stand side voltage, thus formation voltage target instruction target word value is anticaustic in regulating plant stand side voltage, is conducive to electrical network and implements regulable control, ensure the reliability of network operation.
Below in conjunction with a kind of concrete system, above method is described further.
A kind of non-tracking power plant automatic voltage control system based on Beidou satellite communication provided by the invention, comprising: main website end, Beidou satellite transmission passage and AVC substation.
Beidou satellite transmission passage comprises Big Dipper user terminal, Beidou satellite system and Big Dipper command terminal.The communication mode of Beidou satellite transmission passage is: first transmit leg is forwarded to ground central station as check-in signal using after the apply by letter signal encryption comprising recipient ID mark and Content of Communication by big-dipper satellite; Ground central station is sent to terrestrial network tube hub after processing check-in signal; Check-in signal after terrestrial network tube hub receives process is sent to ground central station as exit signal through deciphering with after encrypting again; Exit signal is broadcast to recipient through big-dipper satellite by ground central station; Recipient sends after being decrypted exit signal.Transmit leg is Big Dipper command terminal or Big Dipper user terminal, and recipient is Big Dipper user terminal or Big Dipper command terminal.
Main website end comprises AVC main website and Big Dipper master information management platform.In conjunction with said method, when transmit leg is Big Dipper command terminal, when recipient is for Big Dipper user terminal: Content of Communication is voltage target command value, and apply by letter signal is downlink communication content; When transmit leg is Big Dipper user terminal, when recipient is Big Dipper command terminal: Content of Communication is the plant stand side information of voltage that AVC substation gathers, and apply by letter signal is uplink communication content.
AVC main website obtains plant stand side information of voltage, plant stand side information of voltage identifies with corresponding Big Dipper command terminal ID and sends to Big Dipper user terminal by AVC substation, and Big Dipper master information management platform obtains plant stand side information of voltage by Beidou satellite transmission passage and is transferred to AVC main website after process; AVC main website is according to plant stand side information of voltage formation voltage target instruction target word value, Big Dipper master information management platform generates Content of Communication according to voltage target command value, and is identified with the ID of corresponding Big Dipper user terminal by Content of Communication and send to Big Dipper command terminal to be communicated with AVC substation by Beidou satellite transmission passage; AVC substation regulates plant stand side bus voltage and controlled unit according to the voltage target command value received.In present embodiment, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
In present embodiment, AVC main website communicates with Big Dipper master information management platform by electric power Ethernet switch, Big Dipper master information management platform and big-dipper satellite command terminal are by RS485 bus communication, and AVC substation is by RS485 bus or Ethernet and controlled group communication.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1., based on a non-tracking power plant automatic voltage control method for Beidou satellite communication, it is characterized in that, comprise the following steps:
S1, set up Beidou satellite transmission passage, it comprises Big Dipper command terminal and Big Dipper user terminal;
S2, Big Dipper command terminal obtain downlink communication content from AVC main website, downlink communication content comprises the ID mark of the voltage target command value of AVC main website real time down and the Big Dipper user terminal of correspondence, and according to ID mark, voltage target command value is sent to Big Dipper user terminal;
S3, AVC substation regulates plant stand side bus voltage and controlled unit according to the voltage target command value obtained from Big Dipper user terminal;
S4, Big Dipper user terminal obtain uplink communication content from AVC substation, uplink communication content comprises the plant stand side information of voltage of AVC substation collection and the ID mark of corresponding Big Dipper command terminal, and according to ID mark, plant stand side information of voltage is sent to Big Dipper command terminal;
S5, AVC main website obtains plant stand side information of voltage from Big Dipper command terminal, and according to plant stand side information of voltage formation voltage target instruction target word value.
2. as claimed in claim 1 based on the non-tracking power plant automatic voltage control method of Beidou satellite communication, it is characterized in that, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
3., as claimed in claim 1 based on the non-tracking power plant automatic voltage control method of Beidou satellite communication, it is characterized in that, step S2 specifically comprises step by step following:
S21, Big Dipper command terminal from AVC main website Real-time Obtaining downlink communication content, and are forwarded to ground central station as check-in signal by big-dipper satellite after being encrypted downlink communication content;
S22, check-in signal change exit signal into and are broadcast to Big Dipper user terminal by big-dipper satellite after deciphering again encryption;
S23, Big Dipper user terminal are decrypted rear generation communication message to exit signal and send to AVC substation.
4., as claimed in claim 1 based on the non-tracking power plant automatic voltage control method of Beidou satellite communication, it is characterized in that, step S3 specifically comprises step by step following:
Whether S31, AVC substation, according to the difference between voltage target command value and current busbar voltage, judges to regulate target to restrain;
If S32 restrains, then terminate regulable control; If do not restrained, then pass through and the voltage power-less sensitivity of site, calculate whole audience target in real time idle, then according to idle coordinated allocation strategy, the target calculating each controlled unit is idle;
S33, by the voltage power-less sensitivity of unit machine end, result is controlled to epicycle and carry out state estimations, and after Security corrective being carried out to the control objectives of unit according to the result of state estimations, obtain the security control object of each controlled unit;
S34, excitation con-trol unit security control object being exported to each controlled unit carry out target control, then return step S31.
5., as claimed in claim 1 based on the non-tracking power plant automatic voltage control method of Beidou satellite communication, it is characterized in that, step S4 specifically comprises step by step following:
S41, Big Dipper user terminal obtain uplink communication content from AVC substation, and are sent to ground central station as check-in signal by big-dipper satellite after being encrypted uplink communication content;
S42, check-in signal change exit signal into and are broadcast to Big Dipper command terminal by big-dipper satellite after deciphering again encryption;
S43, Big Dipper command terminal are decrypted rear generation communication message to exit signal and send to AVC main website.
6., as claimed in claim 1 based on the non-tracking power plant automatic voltage control method of Beidou satellite communication, it is characterized in that, Beidou satellite transmission passage is duplex communication passage.
7., based on a non-tracking power plant automatic voltage control system for Beidou satellite communication, it is characterized in that, comprising: main website end, Beidou satellite transmission passage and AVC substation;
Beidou satellite transmission passage comprises Big Dipper user terminal, Beidou satellite system and Big Dipper command terminal; The communication mode of Beidou satellite transmission passage is: first transmit leg is forwarded to ground central station as check-in signal using after the apply by letter signal encryption comprising recipient ID mark and Content of Communication by big-dipper satellite; Ground central station is sent to terrestrial network tube hub after processing check-in signal; Check-in signal after terrestrial network tube hub receives process is sent to ground central station as exit signal through deciphering with after encrypting again; Exit signal is broadcast to recipient through big-dipper satellite by ground central station; Recipient sends after being decrypted exit signal; Transmit leg is Big Dipper command terminal or Big Dipper user terminal, and recipient is Big Dipper user terminal or Big Dipper command terminal;
Main website end comprises AVC main website and Big Dipper master information management platform; AVC substation obtains plant stand side information of voltage, plant stand side information of voltage identifies with corresponding Big Dipper command terminal ID and sends to Big Dipper user terminal by AVC substation, and Big Dipper master information management platform obtains plant stand side information of voltage by Beidou satellite transmission passage and is transferred to AVC main website after process; AVC main website is according to plant stand side information of voltage formation voltage target instruction target word value, Big Dipper master information management platform generates Content of Communication according to voltage target command value, and is identified with the ID of corresponding Big Dipper user terminal by Content of Communication and send to Big Dipper command terminal to be communicated with AVC substation by Beidou satellite transmission passage; AVC substation regulates plant stand side bus voltage and controlled unit according to the voltage target command value received.
8. as claimed in claim 7 based on the non-tracking power plant automatic voltage control system of Beidou satellite communication, it is characterized in that, AVC main website is according to voltage power-less safety, the economical operation optimal objective of area power grid, and reactive layered subregion in-situ balancing principle generates the voltage target command value of the grid-connected point control bus in plant stand side.
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| CN201610052101.2A CN105552922B (en) | 2016-01-25 | 2016-01-25 | A kind of Organization of African Unity's tune power plant automatic voltage control method and system based on Beidou satellite communication |
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| CN201610052101.2A CN105552922B (en) | 2016-01-25 | 2016-01-25 | A kind of Organization of African Unity's tune power plant automatic voltage control method and system based on Beidou satellite communication |
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| CN107302266A (en) * | 2017-07-25 | 2017-10-27 | 广州邦正电力科技有限公司 | Distribution network feeder terminal device based on Beidou satellite communication |
| CN107910873A (en) * | 2017-11-23 | 2018-04-13 | 南方电网科学研究院有限责任公司 | A kind of monitoring automatic voltage control system in real time |
| CN110011717A (en) * | 2019-01-28 | 2019-07-12 | 中国电子科技集团公司电子科学研究院 | A kind of spaceborne networking managing and control system |
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